Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Perciformes/Cottoidei
(Sculpins) > Cyclopteridae
(Lumpfishes) > Eumicrotreminae
Etymology: Eumicrotremus: Greek, eu = good + Greek, mikros = little, small + Greek, trema = hole (Ref. 45335); uenoi: Named for Dr. Tatsuji Ueno, formerly of the Hokkaido Fisheries Experimental Station, he contributed greatly to the systematics of Cyclopteridae.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 90 - 100 m (Ref. 115553). Temperate
Northwest Pacific: southern coast of Korean Peninsula and Japan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.0 cm SL male/unsexed; (Ref. 115553)
Morphology | Morphometrics
(total): 5 - 7;
soft rays: 6 - 9;
Vertebrae: 22 - 25. This species is distinguished by the following set of characters: body without spiny tubercles or fleshy papillae (weak if present); anterior three mandibular pores each with a barbel-like tube; interorbital and suborbital pores are usually present; opercular flap rounded; ventral disk with many papillae; caudal-fin is relatively short, 19.5-31.4% of SL (Ref. 115553).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lee, S.J., J.-K. Kim, Y. Kai, S. Ikeguchi and T. Nakabo, 2017. Taxonomic review of dwarf species of Eumicrotremus (Actinopterygii: Cottoidei: Cyclopteridae) with descriptions of two new species from the western North Pacific. Zootaxa 4282(2). (Ref. 115553)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.00785 - 0.05563), b=3.03 (2.79 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.0 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .